# functions
def greet():
    print("Welcome to Python!")
    print("Hello, world!")


greet()


# arguments
def greet_with_name(first_name, last_name):
    print("Welcome to Python, " + first_name + " " + last_name + "!")
    print("Hello, world!")


greet_with_name("Tom", "Hanks")
greet_with_name("Peter", "Parker")
